National Flood Insurance Program (NFIP) Jones County, Iowa

1. National Flood Insurance Program(NFIP) Jones County, Iowa Flood Study Review (FSR) Meeting for Physical Map Revision (PMR) August 20, 2013

2. Meeting Agenda • Introductions • NFIP – Goals • Risk MAP Program • Flood Mapping Process • Physical Map Revision (PMR) • Iowa Floodplain Mapping Program • Questions & Breakout Sessions

3. Welcome & Introductions • FEMA – Region VII • Bob Franke – Regional Project Officer • Richard Leonard – CCO (Consultation Coordination Officer) • Iowa DNR – CTP (Cooperating Technical Partner) • Scott Ralston, P.E., CFM – State Floodplain Mapping Coordinator • Christopher Kahle – Senior GIS Specialist • AECOM Technical Services, Inc. • Andy Bonner, P.E., CFM – Project Manager

4. What is the NFIP ? • The NFIP is a federal program: • Established with the passage of the National Flood Insurance Act of 1968 • Enables property owners in participating communities to purchase • insurance as protection against flood losses • Participation is voluntary and based on an AGREEMENT between local • communities and the Federal Government • AGREEMENT: The Federal Government makes flood insurance available within the community as a financial protection against flood losses, and the community adopts and enforces a floodplain management ordinance to reduce flood risk to new construction in floodplains

5. NFIP Goals • Reduce the loss of life and property caused by flooding • Reduce rising disaster relief costs caused by flooding • Short range goal is to provide flood insurance • Long range goal is to encourage wise use in developments • in flood hazard areas

6. Accomplishing NFIP Goals • Publish flood maps – identify risk • Educate the public on their own risk • Provide federally-backed flood insurance coverage • Encourage development away from flood-prone areas

7. Risk MAP • Mapping, Assessment and Planning • Goal: Reduce the risk to life and property • Vision: Deliver quality products that increase awareness of risk and encourage action Risk Reduction

8. Flood Mapping Process Project Timeline Flood Mapping Project Phases Technical Review Preliminary FIRMs/ Appeals Period Post Preliminary Processing Project Cooridnation & Scoping Engineering FIRM Production Spring 2011 Varies* 2 Months 4-6 Months 14+ Months Entering This Phase Prelim FIRM Panels Nov. 2013 Effective FIRM Panels June 2015 * Weather, Complexity, Etc. Timeline is approximate: Will vary per project

9. Physical Map Revision (PMR) • PMR is a revision made by FEMA to a Flood Insurance Rate Map (FIRM) affecting multiple panels • CTP Grant Opportunity (Leveraged Data; 25% Local Match) • FEMA, Iowa DNR and local officials met and discussed needs in three (3) counties in the state for FY 2012 CTP Funding • Needs were identified, prioritized and costs were estimated

10. Tasks of this PMR • Leveraged Data (ACOE H & H) • Survey Data – channel and bridge surveys • Hydrology – updated discharges for Maquoketa River • Hydraulics – updated hydraulic models for Maquoketa River and Kitty Creek • Data reviewed for compliance with FEMA Guidelines & Standards and updated accordingly by AECOM • Floodplains/Floodways – Topographically correct floodplains and optimized floodways were developed.

11. Tasks of this PMR - continued • Flood Study Review Meeting (FSR) – August 20, 2013 • FIRM Database & FIS – Update the existing countywide database and FIS to include PMR data (Effective FIRMs are July 16, 2008) • Panel Production – Produce new/updated panels • and update the Flood Insurance Study (FIS) • Produce Preliminary Map Products – Distribute • panels to communities for review (approximate date: • November, 2013) • CCO Meeting – One month after Distribution of • panels

12. Tasks of this PMR - continued • Federal Register Publication must post the limits of change in the Federal Register and two local newspapers. • Appeals Period – 90 days • Appeals Resolution – 30-45 days • Letter of Final Determination – Marks the date that begins the map adoption and compliance period (6 months to Effective date) • Effective Maps – Estimated June 2015 • Ordinance needs to be adopted before the Effective date.

13. Jones County, IAPhysical Map Revision • Leverage ACOE – Rock Island District hydrologic & hydraulic models • Revised studies: • 1.5 miles Kitty Creek • 3.4 miles Maquoketa River • 5 updated FIRM Panels

14. What’s New: Topographic Data • Effective Study used 1974 topographic maps with a 2-ft contour interval and a scale of 1:4800 • Revised Study used 1m and 3m statewide DEM, equivalent to a 2-feet contour interval and developed from 2008 LiDAR

15. What’s New: Survey Data • Channel cross-section data was collected by USACE in 2010 • Bridge data was furnished by the State of Iowa Department of Transportation and augmented by field inspections where necessary

16. Hydrology: Effective vs. New Discharges Why discharges increased: • Effective hydrology from mid 1970s • Revised gage analyses up to water year 2012 to interpolate discharges near Monticello, IA • Major flood events in 2002 & 2010 taken into account during analyses

17. Hydraulics: Effective vs. New BFEs • Maquoketa River (1% annual chance discharges increased from 34,500 cfs to ~ 37,000 cfs) • Kitty Creek (no discharge changes)

18. Iowa Floodplain Mapping Program • Post 2008 Disasters $15M CDBG Grant • Established the Iowa Flood Center (IFC) • Additional resources secured • Business Plan

21. Iowa Floodplain Mapping Program

27. Contact Information Scott Ralston, P.E., CFM Floodplain Mapping Coordinator Iowa Department of Natural Resources Email: Scott.Ralston@dnr.iowa.gov Phone: 515-281-8121 Andy Bonner, P.E., CFM Project Manager AECOM Technical Services, Inc. Email: andrew.bonner@aecom.com Phone: 816-410-6371